Low-Temperature Sintering and Piezoelectric Properties of 0.65Pb(Zr1-xTix)O-3-0.35Pb(Ni0.33Nb0.67)O-3 Ceramics
- Authors
- Nam, Chan-hee; Park, Hwi-Yeol; Seo, In-Tae; Choi, Jae-Hong; Joung, Mi-Ri; Nahm, Sahn; Lee, Hwack-Joo; Kim, Young-Heon; Sung, Tae Hyun
- Issue Date
- Oct-2011
- Publisher
- WILEY
- Citation
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.94, no.10, pp.3442 - 3448
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY
- Volume
- 94
- Number
- 10
- Start Page
- 3442
- End Page
- 3448
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/167466
- DOI
- 10.1111/j.1551-2916.2011.04538.x
- ISSN
- 0002-7820
- Abstract
- 0.65Pb(Zr1-xTix)O-3-0.35Pb(Ni0.33Nb0.67)O-3 (0.65PZTx-0.35 PNN) ceramics exhibited a morphotropic phase boundary at approximately x = 0.58-0.59. The 0.65PZT58-0.35PNN ceramics sintered at 1200 degrees C exhibited the high piezoelectric properties of d(33) = 605pC/N, k(p) = 0.61, and epsilon(T)(3)/epsilon(0) = 3600. The sintering temperature of the PZT58-PNN ceramics decreased from 1200 to 850 degrees C with the addition of a small amount of CuO. The CuO reacted with the PbO and formed a liquid phase during sintering, which assisted in the densification of the specimens. Most of the Cu2+ ions existed in the CuO second phase, thereby preventing any possible hardening effect due to the Cu2+ ions. The Curie temperature of the 0.65PZT58-0.35PNN ceramic was approximately 200 degrees C and was not altered by the addition of CuO. The d(33), k(p), and epsilon(T)(3)/epsilon(0) values of the 0.65PZT58-0.35PNN ceramics were considerably increased with the addition of CuO and similar results were also observed for the 0.65PZT59-0.35PNN ceramics. In particular, 1.0 mol% CuO-added 0.65PZT58-0.35PNN ceramics sintered at 900 degrees C exhibited the high piezoelectric properties of d(33) = 620 pC/N, k(p) = 0.64, and epsilon(T)(3)/epsilon(0) = 3750. Moreover, the reaction between the Ag electrode and the Cu-added 0.65PZT58-0.35PNN ceramic sintered at 900 degrees C was negligible.
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